Node.js Load Balancer

A high-performance, cluster-based load balancer and reverse proxy server implementation in Node.js. This server utilizes Node's built-in clustering capabilities to distribute incoming HTTP requests across multiple worker processes, ensuring optimal resource utilization and improved performance.

Features

• Multi-process architecture using Node.js cluster module
• Round-robin load balancing across worker processes
• Configuration-based routing rules
• Upstream server proxying
• Error handling and validation using schema validation
• TypeScript support for type safety

Primary Process

• Initializes the main HTTP server
• Spawns and manages worker processes
• Distributes incoming requests across workers
• Handles worker communication

Worker Processes

• Handle individual HTTP requests
• Route requests based on configuration rules
• Proxy requests to upstream servers
• Validate incoming/outgoing messages

Installation

1. Clone the repository
2. Install dependencies:

npm install

Running the Server

npm start

Features to add in futu

• Add support for HTTPS
• Add support to load balance between multiple upstreams
• Load Balancing could use more optimised algorithms like weighted RR or URL hashing